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WCAG-Compliance

wcagc-mcp

by WCAG-Compliance
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Hybrid

Get a full-site scan run's findings

get_run_findings
Read-onlyIdempotent

Retrieve rule-deduplicated accessibility findings for a full-site scan run, with one entry per rule and mapped WCAG success criteria. For multi-page crawl results; use get_findings for single-page scans.

Instructions

Run-level, rule-deduplicated findings for a scan_site run — one entry per rule, with the WCAG success criteria it maps to. Pro+. For a single-page scan from scan_url, use get_findings instead.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
runIdYesThe id returned by scan_site.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
violationsYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed2 schema fields changedv0.1.2
    • addedInput schema / properties / runId / description
      Added value: +"The id returned by scan_site."
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "violations": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "failureSummary": {
+            "type": "string"
+          },
+          "helpUrl": {
+            "type": "string"
+          },
+          "htmlSnippet": {
+            "type": "string"
+          },
+          "impact": {
+            "type": "string"
+          },
+          "ruleId": {
+            "type": "string"
+          },
+          "target": {
+            "type": "string"
+          },
+          "url": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "wcagSc": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "ruleId",
+          "impact",
+          "wcagSc",
+          "helpUrl",
+          "target",
+          "htmlSnippet",
+          "failureSummary"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "violations"
+  ],
+  "type": "object"
+}
  2. Addedv0.1.1

TDQS

A4.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, ensuring safe read behavior. Description adds that results are deduplicated per rule and include WCAG mappings, but doesn't contradict annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences: first delivers core purpose and details, second provides alternative usage. No unnecessary words, well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the presence of an output schema, description need not detail return format. It specifies scope (full-site scan), deduplication, and WCAG mapping, which is sufficient for the tool's context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% for the single parameter runId, with clear description in schema. Tool description does not add additional parameter semantics beyond what schema provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states it retrieves run-level, rule-deduplicated findings for a scan_site run, including WCAG success criteria mapping. Explicitly distinguishes from sibling 'get_findings' for single-page scans.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides explicit alternative usage: 'For a single-page scan from scan_url, use get_findings instead.' Also notes 'Pro+' restriction, setting clear context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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